Actuator element, liquid drop discharge head, liquid drop discharge apparatus and image forming apparatus
US9033468B2 · kind B2 · utility
0Cited by
8References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 13, 2014 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An actuator element includes an electrode film; and an insulation film layered on the electrode film including a through hole for connecting a wiring which is formed on the insulation film to the electrode film. A shape of a rim of the through hole is either a closed curve free of corners or a polygon with vertex angles which are larger than 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.